Pierre-Luc
@dallairedemers
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Founder & CEO @pauli_group | Post-quantum cryptography for blockchains and quantum resistant money | Quantum computing | AI
Toronto, Ontario
Joined April 2009
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Pinned Tweet
It's really incredible what one
@DARPA
plot can do to enable the
#QuantumComputing
future.
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@EmmanuelMacron
Au même moment:
JUST IN: 🇹🇼 Taiwan detects 70 Chinese aircrafts and 11 warships surrounding the island.
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@RokoMijic
Also the maximum is not scale invariant, it depends on the radius of the n-sphere.
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@Noahpinion
The public sector has been cannibalizing the private sector. While government is ballooning, wealth isn't created.
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LK99 is a strange compound.
Samples with 110K superconductivity, a strange 300x resistance drop close around 250K,
no room temperature diamagnetism in this case.
Most samples turn out to be semiconductors.
First independent measurement of zero resistance in LK-99
A team of scientists from the Physics Department of Southeast University, a top university in Nanjing, China, have reported measuring 0 resistance in a sample of LK-99 they synthesized from scratch.
Here is the video:
-
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@ESYudkowsky
It can perform ab initio calculations for completely novel materials and provide paths to their synthesis!
...
Oh no, it can't. And it's nowhere close.
It's just a stochastic parrot.
It's evident everywhere knowledge is sparse or computationally expensive to obtain.
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@bryancsk
Abysmal leadership and policy makers. Policies derive from ideology in Canada, the results follow.
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@KnightLegg
@cafreeland
Tax land, not work. That's how Switzerland does it.
Value creation engine:
Tax land, it literally pulls gold and value out of the ground.
Taxing income and capital gain has the exact opposite effect, it disincentivize work and success.
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Flat band (Fermi-Hubbard) physics at the Fermi level for an ab initio DFT calculation of LK99.
It's a good clue but strong correlation calculations would be required to determine if there is a superconducting order parameter that appears.
Here is the main shot of the density of states calculation. Note the dotted lines at the Fermi energy.
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@iris_IGB
@moke_codes
@RealAstroBit
@endless_sine
@ATinyGreenCell
Ginzburg-Landau.
Type I superconductors are diamagnetic and show Meissner effect.
The coherence length ξ >> λ magnetic penetration depth.
Type II superconductors show Meissner effect and quantum locking as magnetic flux lines thread the sample.
In that case ξ << λ.
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@skdh
What determines Type I or Type II is the relative ratio between coherence length and London depth.
@iris_IGB
@moke_codes
@RealAstroBit
@endless_sine
@ATinyGreenCell
Ginzburg-Landau.
Type I superconductors are diamagnetic and show Meissner effect.
The coherence length ξ >> λ magnetic penetration depth.
Type II superconductors show Meissner effect and quantum locking as magnetic flux lines thread the sample.
In that case ξ << λ.
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@DahliaKurtz
Arrested yes (he did run over people), charged no (he was clearly assaulted and can defend himself).
The protesters refused medical attention, they should still be charged for assault.
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@tdryja
@LukeDashjr
@jimbovelure
@pwuille
@real_or_random
In between 10k and 100k *physical* qubits ECC goes from unbroken to completely broken.
You'll have months of warning not years. And that's for the commercial devices, not secret ones.
@OSINTDunny
It's largely about building machines large enough. Algo and hardware improvements all intersect around 2030.
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@cafreeland
Communism is a downward spiral, look at your numbers, they speak for themselves.
Taxing land is the progressive thing to do, not work and value creation.
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@JustinTrudeau
Thank you for killing innovation incentives in Canada.
Can you tell us if Christia Freeland is on the list of 11 MPs colluding with foreigh agents?
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@visegrad24
They can turn around and stop the meatgrinding any time they want, no one is forcing them to continue.
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@DahliaKurtz
If there is a security crisis at the 49th parallel enabled by Ottawa it won't be long before there are 10 more stars on Old Glory.
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99.99%+ single qubit gates and 99.9% two-qubit gates!
When two-qubit gates also get better than 99.99%, it will become practical to scale the surface code to thousands and then millions of qubits and run fault-tolerant algorithms like Shor and quantum simulations.
🤩 high fidelity 2Q gates with fluxoniums couple via transmon. As high as 99.9%🤯
Congrats
@kyle_serniak
and
@oliver_mit
!
I’ve been looking forward to it since you mentioned this at QuARC!
📃:
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"In this short note we point to an error in the claims of Chen’s paper."
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Waiting for the "we live in a quantum simulation" people to show up.
So hard to figure out...
Nah I am just messing with you. Of course this is a simulation. Are you kidding? A state of matter based on 27 stationary ions? Or 50 stationary LC resonators?
I am quoting Wikipedia summary of The Futurological Congress by Stanislaw Lem:
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Do we live in Cryptomania or Minicrypt?
In my 2017 survey I wrote on how essentially all our post quantum public key crypto eggs are in the lattice basket. (No, I don’t know if those eggs are now broken.)
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@QuantumMemeing
@letonyo
@ChrisPeikert
@regevlab
Yilei doesn't seem to have a Twitter account, this must be why he has all the time in the world to work on algos like that.
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Value creation engine:
Tax land, it literally pulls gold and value out of the ground.
Taxing income and capital gain has the exact opposite effect, it disincentivize work and success.
Chrystia Freeland: A fairer tax system to benefit all Canadians
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@alanfryermedia
If the Liberals did not turn a blind eye they would have to arrest the extremists. This means they could risk losing some of their few remaining votes.
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How many physicists actually paid attention in their graduate condensed matter classes? (If they took any...)
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Did you need 1 million qubits to run your fault-tolerant quantum algorithm?
Well, now you need less than 100,000.
Today in QEC on the arXiv
An LDPC code using an 'effectively planar' qubit connectivity. With comparable threshold to the surface code, but 15x more qubits.
And who found this new code, that rivals Kitaev's masterpiece? Of course, it was Bravyi!
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@simon_tardivel
Les réflecteurs laser des mission Apollo y sont toujours et il est encore possible de les détecter.
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@WMichaelOsborne
@tdsb
has long been hijacked by CCP plants like
@Jason_To
if you are wondering what's happening.
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@anotherglassbox
What people flying above the cloud cover are seeing:
Literally right now, on a plane from Boston back to LA, I am seeing these gorgeous
#Aurora
above Toronto. This is incredible. Period.
#AbSciCon24
#AbScicon
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How to benchmark variational
#quantumsimulation
methods on noisy
#quantum
processors?
Learn how in our latest
@ZapataComputing
paper with
@mstechly
@jfgonthier_qc
@nbashige
@RomeroFontalvoJ
and
@caoyudong
:
#quantumcomputing
#material
#chemistry
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@angryfermion
If there was such a large deviation from quantum theory it would actually be a breakthrough.
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Dowling was right about the scaling law of quantum computers.
In this talk, from July of 2018, I talk about Dowling's Law — the double exponential scaling of the power ofnear term quantum computers. Hartmut Nevin mentioned this idea in his talk nine months later, and overnight it became Nevin's Law.
I'm not bitter.
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Satoshi's
#Bitcoin
is a quantum application benchmark.
Wondering how good quantum computers need to be for certain problems?
Reminder that
@unitaryfund
keeps updated resource estimates for different advantage problems here:
DM or reply or metriq
@unitary
.fund, if you have ones to add to the chart
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@DahliaKurtz
20% of the canadian workforce is working a government job now. He's a drop in the ocean of waste.
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@paulg
How would you deal with murderous rape raids like Oct 7th?
What else does Gaza export?
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"Building millions of qubits will cost billions of dollars."
Well, building millions of pixels on a giant spherical screen also costs about the same.
It's totally doable.
the bad news: the las vegas sphere is all we have left
the good news: the las vegas sphere is all we need
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Quantum resistant wallets on Ethereum mainnet🔐
(ERC 4337 + Lamport signatures)
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People who believe Bitcoin is quantum resistant and can last another 10 years might as well believe the Earth is flat.
I am seeing way too much “flat earth” BS around bitcoin twitter. Why is this? Am I alone?
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@numberphile
*decimal* digits or *binary* digits?
800 binary digits is about 2,700 core-years, if you want 700 decimal digits you need a quantum computer.
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@nationalpost
How do we know Freeland isn't supporting such bad policies because she is actually on the list of MPs which collude with foreign agents?
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Breaking crypto
10 years ago: > 1 billion qubits
2030: 100,000 qubits
Biased noise is easier to error correct than depolarizing noise. Hence by engineering strongly biased qubits (more T1, less T2), fault-tolerant algorithms can be achieved with far less qubits.
For example, only ~126k cat qubits could break ECC-256 in hours
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@mattgurney
How do we know Freeland is not one of the 11 MPs colluding with foreign agents?
If it was only backbenchers they would have pushed them out already.
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@geraldfillion
Bien sûr, les "experts" préfèrent accumuler des trillions de dette à la place.
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@mtlgazette
Quel torchon.
Gazette should dig down their archives some more.
or, you know, starting when the Montreal Gazette goaded an Anglo mob to burn down parliament
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@Deepneuron
@EMostaque
@OpenAI
AI regulation discussions are really about building moats. Both between corporations and between countries.
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@DulwichQuantum
Otherwise G. Aad et al. had 5,154 authors for measuring the mass of the Higgs Boson.
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@RokoMijic
If you zoom out enough the biosphere is a state of matter that minimizes its free energy and it's globally very successful at this task. Whatever you add in it it will absorb the new component and find a lower free energy state.
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@shaunmmaguire
There is even a word for this war crime: perfidy.
The feigning of civilian, non-combatant status is perfidy.
The feigning of protected status by the use of signs, emblems or uniforms of the United Nations is also perfidy.
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@AndreasAtETH
Can you record what happens with only one magnet when you put the pyrolytic graphite on top? 🙏
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The first crypto to be broken by quantum computers will be
#Bitcoin
somewhere between 2029 and 2033.
FREE TO READ: our story on the future of quantum computing — how it works, the kinds of problems it could solve, and why it threatens a system of encryption that underpins the whole internet
w/
@samjoiner
,
@inari_ta
, and
@johnthornhillft
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Post-quantum crypto is back!
Chen’s paper has a bug, independently discovered by Hongxun Weng and Thomas Vidick, that he doesn’t know how to fix. If I understand correctly, in its current form the paper doesn’t yield any improvement on prior algorithms.
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"Quantum winter" isn't a thing.
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The logo of the Fabian society in Britain is literally a wolf in sheep's clothing.
The goal of the bourgeois society is to achieve socialism through reforms rather than revolution.
Orwell refused to join because he deemed it too authoritarian.
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☀️ Simulating fusion with quantum computers: 1e15 - 1e17 operations
🧪 Simulating chemistry with quantum computers: 1e13 - 1e15 operations
🔓 Breaking RSA: 1e12 operations
🪙 Breaking Bitcoin: 1e8 operations
🗓 Today: 1e4 operations and climbing
Congrats
@nick_c_rubin
et al. for the recent work on using
#QuantumComputing
to help advance the study of
#fusion
.
From the abstract: This resource estimate is about the same # of logical qubits as for FeMoCo, but about 100x the Toffoli gates.
#Energy
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Thomas Vidick wrote more thought about the bug in
#eprint555
on the Discord (like Yilei, he does not appear to use Twitter).
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For the record, quantum computers are only good at two things ✌️:
1. Breaking public key crypto;
2. Quantum simulations.
That's it.
There is no world in which they can "process vast amount of information in parallel". 🤦♂️
🚀 Quantum Computing Revolution: AI Chatbots Like ChatGPT at Risk? 😱
Explore how quantum computers could reshape the AI landscape 🌐👇
Will the unprecedented power of quantum computing render current AI chatbots obsolete? 🤖
#BeInCrypto
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@martinmbauer
The price can't be 1$ per person or the hotel would end up with -1/12$.
If the price per room with n people is 1/n! then the hotel would turn a profit.
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Ludicrous.
The public key crypto of Bitcoin is the weakest you can find.
Bitcoin is mostly a silly bet that quantum computers can't be scaled to 100,000 physical qubits.
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@ylecun
But what if there is a 1% chance it is as dangerous as the invention of the printing press?
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Some foreshadowing here.
This is a reminder to secure your financial accounts as well as protect against identity theft and fraud.
Remember to:
🔒Use strong passphrases or passwords
🔒Set up multifactor authentication
🔒Keep account alerts turned on
#CybersecurityAwarenessMonth
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Everyone's timeline for large scale FTQC seems to have moved closer by several years.
This experiment with up to 280 physical qubits, simulating up to 48 logical qubits, seems to be the
#quantumerrorcorrection
breakthrough of the year. This is an impressive achievement, and it comes earlier than I thought it would be possible.
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What Kretschmer really found is that the underlying assumptions of quantum cryptography are independent of those of classical cryptography.
Namely, even if P = NP (BQP = QMA in fact), some quantum cryptography is still possible!
🚨 YOUNG CRYPTOGRAPHER CRACKS QUANTUM ENCRYPTION CODE!
William Kretschmer, a 24-year-old American wunderkind from UC Berkeley, has reportedly made a groundbreaking discovery in quantum encryption that could potentially revolutionize data security.
His breakthrough shows that
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@coingecko
Bullsh*t. Breaking Bitcoin requires closer to 100k-1M qubits, it's far easier than breaking RSA.
5-7 years is much more realistic, it's probably too late already given the upgrade will take years.
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An array of 100 x 100 cat qubits could break ECC-32 in a few minutes with Shor algorithm.
Your laptop can do that as well.
Glue 10 of those arrays together and suddenly ECC-256 (a.k.a
#BITCOIN
) breaks in hours.
This is the true asymptotic exponential speedup of FTQC.
@EricAspling
@dangaristo
@Shinossaura
Which assumption will break catastrosphically? Otherwise so far the experiments match the theory.
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